Milwaukee MC810US MAX pH/TDS/Temp Monitor

Fast easy to read current results with 3 large digital BACKLIT LCD readouts. Accurate to ±0.2 pH (0.0 pH to 12.0 pH). Accurate  ±2% Full Scale TDS.  External Switch atop the unit converts EC conductivity to TDS (ppm) using 0.5 or 0.7 conversion factor. Simple two-point pH calibration and one point TDS, for increased accuracy with manual trimmers for easy adjustment. Gel-filled, double junction MA911B/2 (included) lab grade pH electrode for low maintenance and high performance. 6.5 feet probe cables for extra flexibility when testing. 12 VDC power supply.